QUANTUM-CHROMODYNAMIC CORRECTIONS TO PARITY-VIOLATING ASYMMETRIES IN EP REACTIONS AT HIGH Q2

We examine quantum-chromodynamic (QCD) corrections to the Q2 and y dependence of various asymmetries in ep deep-inelastic scattering produced by the parity-violating weak neutral currents of the Weinberg-Salam model. We find, for Q2 in the range 10≤Q2≤104 (GeV/c)2, that a small change in the value of sin2θW can mask the small (∼5-10%) QCD corrections even if data are taken over the entire range of y. We conclude that QCD does not produce significantly large modifications to the weak asymmetries considered for the above range of Q2. © 1979 The American Physical Society.